Impact of natural photosensitizer extraction solvent upon light absorbance in dye-sensitized solar cells

Suriati Suhaimi; Siti Zubaidah Mohamed Siddick; Nor Azura Malini Ahmad Hambali; Vithyacharan Retnasamy; Mohamad Halim Abdul Wahid; Mukhzeer Mohamad Shahimin

doi:10.1117/12.2257055

23 February 2017 Impact of natural photosensitizer extraction solvent upon light absorbance in dye-sensitized solar cells

Suriati Suhaimi, Siti Zubaidah Mohamed Siddick, Nor Azura Malini Ahmad Hambali, Vithyacharan Retnasamy, Mohamad Halim Abdul Wahid, Mukhzeer Mohamad Shahimin

Author Affiliations +

Proceedings Volume 10099, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI; 100991G (2017) https://doi.org/10.1117/12.2257055
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Natural pigmentations of Ardisia, Bawang Sabrang, Harum Manis mango, Oxalis Triangularis and Rosella were used to study the general trend in performance of dyes as a photosensitizer in the application of dye-sensitized solar cells (DSSCs) based on optical light absorbance and photoelectrochemical characteristics. From the Ultraviolet-Visible Spectrophotometer with the recorded absorption measurements in the range between 400 nm to 800 nm, the dyes extracted from Rosella and Oxalis Triangularis in water solvent exhibited the conversion efficiency up to 0.68% and 0.67%, respectively. The light absorbance peak for dye extracted from Ardisia, Bawang Sabrang, Oxalis Triangularis and Rosella in water and ethanol solvent resulted in the range between 500 nm to 650 nm, while the Harum Manis mango resulted in the broader spectra in both water and ethanol solvent. The light absorbance spectra of each the dyes shows shifted wavelength spectrum when the extracted dye is adsorbed onto TiO₂ film surface that might influenced the absorption of light by TiO₂ particle in the visible region. The capabilities of the dyes to absorb light when bonded onto the TiO₂ photoanode was found to be significant with the current-voltage conversion of the cell. The results demonstrates just the tip of the vastness of natural dyes’ (native to tropical region) feasibility and applicability as a photosensitizer.

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Suriati Suhaimi, Siti Zubaidah Mohamed Siddick, Nor Azura Malini Ahmad Hambali, Vithyacharan Retnasamy, Mohamad Halim Abdul Wahid, and Mukhzeer Mohamad Shahimin "Impact of natural photosensitizer extraction solvent upon light absorbance in dye-sensitized solar cells", Proc. SPIE 10099, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI, 100991G (23 February 2017); https://doi.org/10.1117/12.2257055

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KEYWORDS

Absorption

Bioalcohols

Dye sensitized solar cells

Absorbance

Particles

Oxides

Solar cells

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